Lenovo ThinkPad E14 Gen 5 E16 Gen 1 Battery 5B11K63029
5B11K63029, 5B11K63032, 5B11K63033, 5B11K63034, 5B11N46003, 5B11N46012, 5B11N46031, 5B11N56341. This part is a genuine part direct from Lenovo so you can be sure you are receiving the highest quality product available.